Protocatechuyl
[化] 原儿茶基; 3,4-二羟苄基
🗣️ 情景例句
Is he OK?
他还好吗？
I think gray hair makes you look rather distinguished.
我觉得你灰白的头发使你看上去很严肃。
We can make the price lower if you would order a bit more.
如果你单子下多一点，我们可以减价。